Insole-lip-sewing machine.



A. E. JOHNSON.

INSOLE LIP SEWING MACHINE.

APPLICATION FILED Mov.4. I914.

1,171,723, Patented Feb. 15,1916;

2 SHEETS-SHEET I- j yz 12m 5PM.

THE COLUMBIA PLAXyoURAPH CO, WASHINGTO D. C

A. E. JOHNSON.

INSOLE UP SEWING MACHINE. APPLICATVON FILED NOV.- 4. 1914.

1,171,723; r Patented Feb.15,1916.

2 SHEETSSHEET 2- vwv mnnEinnnnnnnnicZ- THE COLUMBIA PLANOGRAPH c0,WASHINGTON, D. C.

ALBERT E. JoHNsoiv, on BEVERIQY,, MAssaoHusnrTs,-'iissieNon arc-UNITEDsiion' MACHINERY COMPANY, or rn rnnsolv NEW annsnmn conronn'rion onr vnwJERSEY.

To all whom/it may conc Be it known that I, 'liLisnncrlillJoiiivson v acitizen of the United States, residing at Beverly, in the county. ofEssex and State.

of Massachusetts, have invented certain new and useful Improvements inInsole-Lip- Sewing Machines; and I do hereby declare .7

thefollowing to be a full, clear and exact description of the invention,suche-asi will enable others skilled in the art to which it appertainsto make and use the-same:

This inventionrelates to sewingemachine's Y for formmg insoles and moreparticularly-tov sewing machines for forming what are known commerciallyas Economy insoles.

In forming the Economy type, of insole the blank is treated by slittingits face to form a'channel and by slitting the edge to form a'feather,these operations producing two independent contiguous'flaps at the,margin-ofthe blank; The two flaps thus lsitioning location when the footdrops and formed are turned up from the channel and the feather andsecured together to formfa single. compound lip. Thereafter reinforc--,

ing fabric such as canvas is applied to the faceof the insole and tothelip. I

The present machine contemplates an improvement in the formation ofinsolesofthe-general character described and relates to the step ofbringingvthe channel andfeather flaps together to form a single cornpounddip. yHeretofore the two flaps have; been'securedtogether either bycement or by'a line of stitches for-medkin the usual manner by means ofwell known stitch forming mechanism 1n sewing machines suitably modifiedto adapt them to this particular classof work, including-among otherfeatures. ;a pressure device engaging. the 11150187 to hold it nposition to-.-'rece1ve the, stitches through the twoflfiaps. ltcha sbeen found in practice that owing tofthe heavy pressure exerted on theinsole by the sole positioning device, and the flimsv character of thestock engaged by the feeding device, namely the flaps, some diflicultyhas'been experienced in feeding-the insole properly through the machine: .0

The, object of the present invention to provide a" novel mechanism forautomati:

callyr relieving the pressure of the solepo- 1 sitio'mng dev ce, orpressure roll, ,con the insole' during the timethe insole is being fed,thus entirely overcoming any friction exerted by the device on the soleat this time ms L ;1=-S wm: 1

,tion, enlarged, of the. pressure device releasfie w 9L nt f Pantewiemmm. J Application fildNovemberQlBM; Seri'a1No.S'70,2o8. I

tached to the outer endof the lever for @In accordance this object theinvention ;conte mplates the provisionof a stop atraising the presserfootthe upward move-v l ment of thejstop and consequent outward movementof the pressure device through the usual connecting levers to thepresser foot raising lever, being controlled I by a movement of thefeedmechanisml In theillustrated embodiment "of the in-.

vention the stopsisdirectly engaged and moved 'by: tl1eusi'ialfour-motionF feed bar,-

that is, the stop is lifted and the pressuredevlce moved; outward-lytbypthe upward movement 'ofthe feed: bar :justlbefore the".

ing function eiand isgreturnedito its sole 130:

and such cthers-as may hereinafterv appear,

theiinvention comprises thefd-evices, combi-e nations and arrangementofparts hereinaf-s ,ter described: and particularly pointedout intheappended claims,"v j

The prefe'rredjform 0f the invention isillustrated in the-accompanyingdrawings in i I is an end elevation of a Willco and-Gibbs domesti s ewichin in:

Figure 1 to securing-togethergthe two contiguousfiaps 'of, insole,having gthe improvedpressure and positioning device releasing mechanismfitted ktheretoyande Fig. -2is ay-rear elevainglniechanism anditsassociated parts, the feed is r, and an insole vbe ng'fed, be ng,shown n section,-

, In theijembodiment of illuslf trated in the drawings the WillcoX -andGibbs sewing machine there shown is pro vided with the usual stitchformingmechm nisnrincluding a straighteyegpointeduneedle- 5 V c 2 and-ar-cta'ry thread hook or'cast The threadhook is rotated by=being mountedY directly upon the driving shaftfG :and I the lot needle bar isreciprocated infguides -onithe mounted, leverj8' actuated from aneccentric frame by the oscillations i ofa 'pivotally 1 :onth edrivinggshaft.6, all;as usual. four m ve; new m inci en a; .ie d

bar 12 pivoted at 14 to the machine frame is operated in the usualmanner by an eccentric 16 on the end of the driving shaft 6. The

feed bar 12 is provided withan extension 13v removably held in-thecasting 25 by a screw 19, with its front edge in a plane but slightly inadvance of the path of operation of the needle 2. This change in thesize and locationiof the work table is to permit it to support the twoupturned flaps of an insole in such position relative to the-stitchforming mechanism as properly to receive a line of stitches. When. inworking position. the edge flap of theinsole rests upon the work table,the front edgeof-the work table pressingwell into the shoulder at thebase of the feather, and theichannel flap is pressed upon by the presserfoot 18.; 'An insole in'position during the feed movement is illustratedin Fig. 2. v g

The small area of the Work table leaves the thread hook 4 exposed andowing to theposition'of the insole in the machine unless some protectionbe provided the thread hook, in its rotation, is liable to in jureeither the marginal portion of=the sole by engagement therewith or thehand of the operative who directs the feed of the work throughthemachine. To prevent such injury the thread hook is provided with a capor guard 28 removably supported in the casting 25, which incloses theupper portion of the path of movement of the thread hook,

thus effectively housing it and preventing its coming in contact witheither the work or th operative. In order to'maintain the two flapsofthe insole in stitch receiving position during.

the operation of the stitch forming mechanism, the machine is alsoprovided with a sole positioning device,for presser roll, com? prising aroll 32 adapted to exert pressure on the unchanneled face of the insoleat a point opposite, the fiaps'. This roll is mounted upon one arm 34 ofa bell-crank leverwhich is pivoted at 35in a bearing located upon themachine frame at a point'below the worktable. This mounting of the workguide provides for an unobstructed space above and in front "of the worktable, thereby permitting the insole readily to be inserted.and'removed, and also provides for a free and easy manipulation of theinsole by the operative during the stitching operation. The guide roll32 is held. in Workingposition by-means of a strong, coiled spring 37connected by its ends to a pin 33 in the lever arm 34 and an eye-bolt 33mounted upon the machine frame. The other arm 36 of the bell -crankleverwhich supports the workguide is connected by means of the well knownyoke and sliding block to the 1' forwardly extendingarm 38 of asecond'bell crank lever pivoted at 39 in a bearing formed'on the casting25. The rearwardly extending arm 40 of this latterbell-crank: lever hasdepending therefrom a. chainj42 which is connected to any usual orconven+ ient form of operating treadle (not shown).

\Vith this construction, when the treadlezis moved in a direction todepress the bell-.

crankarm 40 motion is communicated from the bell-crank arm 38 tobell-crank. arm

36 in a direction to move the guide roll. outwardly into. a position topermit insertion or removal of the Work. When the treadle'j is released,the. spring 37 returns the guide roll to its working position.

As thepresser foot 18 must be lifted before the work can readily'beremoved from the machine, means may. conveniently be. provided forlifting the presser foot at the. time the guide roll 32 is removed fromworking position. To this end a lever44 is pivoted at 39 and isadjustably connected at its rear end in a well known manner to thebell-crank arm 40, its forward endexe tending-to a position-beneaththelower end 46 of the presser foot bar.- The lever 44 is preliminarilyadjusted to! a position to allow for changes inthe position of the guideroll, due to the varying thickness of the work as it is fed through themachine with-: out engagement of the lever 44 with the shoulder 46. Thespace provided for this i 1 purpose, however, though sufficient toprevent an inopportune lifting of the presser foot, is not sufiicienttoprevent the proper" operation of the lev'er 44' when the bell?- crankarm 40 is depressed by means of the; V

treadle.

The features of thepresent machinerelating to stitching the two flapstogether, heretoforedescribed, are not claimed herein as they are morefullydescribedand claimed in detail in my United States Patent No.1,089,473 dated March 10, 1914, to which reference may behad for acomplete expla nation.

Referring now moreparticularly to Fig.1

mounting of the feed foot. During the stitch forming operation the feedbar12 is in its lowest position, and the lower end of the stop 50 is notin contact with it. The stop is preliminarily so adjusted relative tothe feed bar that, when the eccentric 16 raises the toothed feed footand just before it completes its upward movement and is ready to moveforward the stop will be engaged by the feed bar. This position isclearly shown in Fig. 1. Further upward and forward movement of the feedbar for the feeding operation will raise the lever 44 and by itsconnection with the bellcranks 3840 and 8436 the presser roll 32 will bemoved outward and release its pressure on the insole, as clearly shownin Fig. 2. By virtue of this construction while the insole is being fedforward the friction and drag of the roll 32 is removed. The adjustmentof the lever 44 with relation to the shoulder 46 to allow for changes ofthe guide roll due to varying thickness of work is explained above, andin making this adjustment allowance is made for sufficient play ofthelever 44 so that the slight lifting of this lever due to the movementof feed bar 12 to remove the pressure of the presser roll will notpermit an inopportune lifting of the presser foot 18.

In the operation of the machine the work is inserted by pressing on thetreadle which, operating through the bell-crank 40-38, raises thepresser foot from the work table and throws the presser roll 82 outward,thus opening up the work holding mechanism and allowing the insole to beplaced in the proper position. Just before the fourmotion feed barcompletes its upward stroke to grip the work, the feed bar engages theadjustable stop 50 and the presser roll 32 is moved outward. Thuspressure from the roll on the insole is removed during the feeding orforward movement of the feed foot. When the feed bar falls at thecompletion of its feeding stroke the presser roll is again drawn againstthe insole by the spring 37. The presser roll is thus released from itspressure on the work during the forward stroke of the feed bar butpresses against the work under the full force of the spring 37 duringthe backward stroke 'of the feed bar, that is, at the time the stitchesare formed.

The nature and scope of the invention having been indicated and itspreferred embodiment specifically described, what is claimed as new, is:

.1. A machine for securing together the two contiguous flaps of aninsole having, in

combination, means for inserting fastening devices in said flaps,supporting means for the flaps, a pressure device bearing on the face ofthe insole opposite the flaps to hold the insole flaps in position toreceive the fastening devices, mechanism for moving said device into andout of contact with the insole, reciprocating insole feeding means, andmeans operatively connected to said mechanism and controlled by themovement of said feeding means for releasing the pressure device duringthe feed.

2. A machine for securing together the two 1 contiguous flaps of aninsole having, in combination, means for securing the flaps together,flap clamping means, a pressure de-- vice to hold the flaps in position.to be clamped, insole feeding means, and means table, a pressure deviceto hold the insole flaps in position to be clamped, a feeding mechanism,and means to release the pressure of said device during the feed whilethe presser foot remains in engagement with the flaps. a i

4. A sewing machine for securing together the two contiguous flaps of aninsole having, in combination, stitch forming mechanism, clamping meansto hold the flaps a presserroll to hold the insole flaps in stitchreceiving position, a feeding mechanism, an operating lever connectedwith the presser roll, and a stop cooperating with said lever andadapted to be engaged by said feeding mechanism to operate said leverand release the presser roll from the insole during the feed.

5. A sewing machine for securing together the two contiguous, flaps ofan insole having, in combination, stitch forming mechanism, a flapclamping mechanism, a pressure device to hold the flaps in stitchreceiving position, an operating lever with a stop connected to saidpressure device, and a fourmotion feed bar adapted to engage said stopprior to its feeding movement and operate said lever to release thepressure device fromthe insole during the feed.

' ALBERT E. JOHNSON.

Witnesses:

WARREN G. OGDEN, Gno. E. STEBBINs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O."

